Device for measuring fluid.



G. A. HARTUNG.

DEVICE FOR MEASURING FLUID.

APPLICATION FILED DEC. 4, 1911.

Patented May 21, 1912.

PATENT OFFICE.

UNITED STATES CARL ADOLF HARTUNG, OF BERLIN, GERMANY.

Specification of Letters Patent.

DEVICE FOR MEASURING FLUID.

Patented May 21, 1912.

Application filed December 4, 1911. Seria1 No. 663,926.

To all whom it may concern:

Be it known that- I, CARL AooLr HARTUNG, a subject of the Emperor of Germany, and resident of 9 Kothenerstrasse 22, Berlin, W., Germany, have invented certain new and useful Improvements in Devices for Measuring Fluid.

My present invention relates to improvements in and is connected with apparatus for measuring the velocity or pressure of electrical current. the intensity of which varies according to movement thereof, and in the course of which current may be disposed. recording apparatus of any suitable design. operable upon fluctuation of the electric circuit.

In the drawings, forming a part of this specification: Figure 1. is a central vertical longitudinal section of the device embodying my invention. Fig. 2 is a partial crosssectional view through a portion of the device as disclosed in Fig. 1. I

A valve casing 64' is provided with an lnlet opening (I and an outlet opening e, communication between the two openings being controlled by a vertically movable impact actuated valve member b which, when seated upon valve seat closes communication between the two openings. As shown 1n the drawings, the inflowing fluid, entering at r], raises the member 1 passes around the seat 0 down laterally of the confining walls of inlet d and then has egress ate. V

The member 6 which, as shown in the drawing, is in the form of a tapering plug, is guided vertically by rod f, which enters a cylinder 71, adapted to confine fluid, a piston 2' being carried by the rod f and adaptedto serve as a dash pot to transfer the fluid from one side of-the pistonto the other in order to avoid rapid movement of the member b. 1

Because of the weight of the member 6 and parts associated therewith, the fluid entering at (2 must overcome the resistance to movement thereof, and according to the rise or fall of fluid pressure the member 7) fluctuates accordingly increasing the size of the opening afforded from entrance (I to l outlet e. as the pressureor velocity of flow increases. The upper portion is of the casing a is conveniently formed, gtO facilitate assemblage. Thisport-ion k carries a receptacle m for mercury, while a rod r secured to member and passing freely through the lower portion of portion is, carries a receptacle 12, also for mercury.

The receptacle nis insulated from the rod 9 and consequently from the other portions of the valve, by insulation material n, or any other suitable arrangement may be substituted therefor.

Extending laterally of the receptacle n are arms 0 preferably symmetrically disposed-each of which carries a downwardly dips into the mercury, and is raised or lowered according to the movemen of the member I).

A rod 7 is rigidly carried by the portion post I is suitably connected to the portion is and a binding post 9 in connection with rod and recording apparatus not shown in the drawings.

The operation of the device is as follows: hen the fluid pressure in the valve casing a, at the inlet (1 increases, the member b is raised and the rods p are lifted upwardly so that there is less surface contact with the mercury. The resistance in the circuit is accordingly increased, and by the reduction same is adapted to record the fluctuation of the member. As pressure at 03 increases,

circuit from Z to g, is accordingly decreased. The rods p are conically shaped inasmuch as the member I; is also of conlcal form, and in order to proportion the resistance in the circuit by movement of the rods p with respect to the mercury, to the increase of the present area afforded to the fluid from the inlet d to outlet 0, the rods p, at various degrees of elevation, must decrease in section progressively, and likewise, in dropping, increase in section progressively.

tapering or inverted conical rod 77 which- Ze, insulated therefrom, as at '1", and dips into the mercurv 1n receptacle n, a blnding.

1- serves to electrically connect the appa ratus with any suitable electric generator of current at the recording apparatus, the

of a plurality of parts,

i the member 6 falls and the resistance in the v the fluid cooperating with the movable ele-.

ments for attaining a variable resistance, it is to be understood that I do not limit myself to this specific fluid since any fluid serving .a like purpose may be substituted therefor without departing from the spirit of my invention.

I claim:.. v

1. In measuring devices for fluid, the

combination with conveying means for fluid,

of a vertically movable impact actuated valve member disposed in the pathof movement of the fluid through said conveying means and actuated thereby, a receptacle containing mercury, a rod, dipping into thev mercury in said receptacle, and operatively connected to said valve member to alter its position with respect to said mercury responsive to movement of the said valve member, and means electrically connecting said receptacle and rod, whereby a varying resistance is formed in the electric'circuit, responsive to movement of the said valve member. J

2. In measuring devices for fluid, the combination with conveying means for fluid, of a vertically movable impact actuated valve member disposed in the path of movement of the fluid through said conveying means and actuated thereby, a receptacle containing mercury, a plurality of rods symmetrically disposed with respect to the axis of movement of said valve member, dipping into said mercury in said receptacle, and operatively connected to said valve'member to alter their position with respect to the said mercury responsive to movement of the said valve member, and means electrically connecting said receptacle and rods, whereby a varying resistance is formed in the electric circuit responsive to movement of the said valve member.

3. In measuring devices for fluid, the combination of a valve casing for conveying fluid, said valve casing having a horizontally disposed valve seat, an impact actuated valve member for said valve disposed in the path of movement of the fluid, means for guiding said valve member in substantially a vertical path of movement, a receptacle, containing mercury, carried by and disposed symmetrically with respect to the axis of movement of said valve member, said receptacle being insulated from said valve member, a rod dipping into the mercury in, said receptacle, a resistant means operatively connected to said receptacle and actuated upon movement thereof, and means for electrically connecting said rod and resistance means whereby a varying resistance is formed in the electrical circuit, responsive to movement of said valve member.

In testimony whereof I have hereunto set my hand in presence of two witnesses.

LOUISE KLOCK E, HELENA SURMA. 

